Exclusive The 100 Sneak Peek: Whose Side Is Octavia On?

You'd think capturing one of the grounders would be a good thing, but the imprisonment of her former captor doesn't jibe too well with Octavia on Wednesday's The 100.

After her brother strings up and beats the man who protected her in captivity, Octavia (Marie Avgeropoulos) begs Bellamy (Bob Morley) to go easy on him. But Bellamy, who doesn't seem to believe in rational thought or nuance, refuses any mercy, insisting, "We need to know what we're up against, how many there are and why they're killing us!"